Show HN: C++ runtime/compile-time detection in constexpr functions

Re:Show HN: C++ runtime/compile-time detection in constexpr ... by nicwilson on Tuesday August 08, 2017 @09:34PM (#14964791)

As with most things in C++ that looks horribly convoluted for some very simple functionality. In D all we have to do is:

* `if ( __ctfe) { ... }` for compile time

* `if (!__ctfe) { ... }` for runtime

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Re:Show HN: C++ runtime/compile-time detection in constexpr ... by VHRanger on Tuesday August 08, 2017 @09:42PM (#14964833)

I don't think it's any secret D does CTFE better than any other language.

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Re:Show HN: C++ runtime/compile-time detection in constexpr ... by nicwilson on Wednesday August 09, 2017 @04:52AM (#14966711)

Yeah it never ceases to amaze me the lengths that C++ users goto to try to do things at compile time.

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Re:Show HN: C++ runtime/compile-time detection in constexpr ... by logicchains on Wednesday August 09, 2017 @12:17AM (#14965506)

Better than Common Lisp?

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Re:Show HN: C++ runtime/compile-time detection in constexpr ... by zerr on Wednesday August 09, 2017 @01:49AM (#14965873)

Does better AND doesn't require the language to be AST :)

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Re:Show HN: C++ runtime/compile-time detection in constexpr ... by junke on Wednesday August 09, 2017 @03:53AM (#14966401)

The joke's on you, working with an AST is a treat :)

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Re:Show HN: C++ runtime/compile-time detection in constexpr ... by looki on Wednesday August 09, 2017 @09:43PM (#14975574)

Thanks, strangely enough this comment made me read more about D and I'm genuinely excited about getting into this language now

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